fix: not returning all the results

src/BookSearch/BookSearch.php

@@ -285,23 +285,23 @@ class BookSearch
      * @throws WebException
      */
     public static function getBooks(array $codes, $field = 'code') {
-        // it is faster to do multiple small request to Solr rather than one big so separate
-        // in chunks if we are above the limit. 15 was found by testing and seems to be a sweet spot
         $limit = 15;
-        $count = count($codes);
-
         $bs = self::getLastInstance();
-        $parts = $count <= $limit ? [$codes] : array_chunk($codes, $limit);
         $books = [];
-        foreach($parts as $p) {
+        foreach (array_chunk($codes, $limit) as $chunk) {
-            // if we use array_merge here the numerical keys (book code) will be lost
+            // Reset query state for this chunk
-            $bs->addOrQuery($p, $field);
+            $bs->clearQueryParts();
-            $results = $bs->getResults(0, $count);
+            $bs->addOrQuery($chunk, $field);
-            $foundBooks = $results['books'];
+            // Use count($chunk) so you only request as many rows as there are codes in this chunk
-            $books += $foundBooks;
+            $results = $bs->getResults(0, count($chunk));
+            $books += $results['books'];
+        }
+        return $books;
     }
 
-        return $books;
+    public function clearQueryParts(): void {
+        $this->queryParts = [];
+        $this->filterQueryParts = [];
     }
 
     /**